Side bearing for cars.



No. 845,839. I PATENTED MAR. 5, 1907'.

W. W. WOOLL.

SIDE BEARING FOR CARS.

APPLICATION FILED OUT. 13, .1906.

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Be it known that I, YVILLIAM W. VVOOLL, a citizen of the United States, residing at luarine City, county of St. Clair, State of Michigan, have invented a certain new and useful Improvement in Side Bearings for Cars; and I declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

This invention relates to side bearings for cars.

The object of the invention is to provide a side bearing which shall be strong and durable, but shall furnish a firm support to the side of the car in whatever position the body of the car may assume with respect to the trucks that shall reduce the friction between the bearings.

In the drawings, Figure 1 shows in side elevation the segments upon which the carplate rests. Fig. 2 is a cross-section showing the pair of segments and the car-plate. Fig. 3 is a reversed, plan view of the car-plate Fig. 4 is a side elevation of the car-plate. seen from the middle part of the axle. Fig. 5 is a perspective of the car-plate.

The truck-frame supports a j ournal-bearing 1, upon which there is mounted two segments 2 and 3. When the car is in a position such that its longitudinal axis is at right anglesto the axle of the truck, the two seg ments 2 and 3 assume a position in which they overlap somewhat, and both are at this time in engagement with the car-plate k on the car above them. Preferably both segments have bearing-faces that are produced as the surfaces of cones, having a common apex at the middle point of the axle. The bearing-surface of each segment may be compared to the tread of a railroad-wheel, and there is also in connection with the tread 4 a flange 6 and with the tread 5 a flange 7.

Each segment is provided with lugs, the inner segment 3 being provided. with lugs 8 and 9, one of which, 8, lies on the side of the segment which is toward the middle of the car and the other of which, 9, lies on the side of the segment which is toward the middle of the car-plate. The segment 2 is also provided with lugs, one of which, 10, is on that side of the segment which lies toward the outside of the-car, and the other of which lug TIITED STATES @FFICF.

WILLIAIVI W. WOOLL, OF MARINE CITY, MICHIGAN.

SIDE BEARENG FOR cans.

Patented March 5, 1907.

11 is on that side of the segment which lies toward the middle of the canplate".

The car-plate is curved around a center, is located above the middle point of the axle of the truck or at a point in the middle line of the car, which when the car and the truck are in assembled condition lies directly over the middle of the axle. The car-plate is pro- 'vided with hanging flanges between which the rim of the se ment engages, and these flanges are provided with entrance-notches 18, 21, 23, and 2a. The outside flanges 12 and 13 (which lie toward the outside of the car and. to the middle of the car as distinguished from the middle flange 14) are provided with long branches leading from the notches, the purpose of which will be explained hereafter. The branch 15 under the passage 16 is strengthened and held in position by a yokepiece 17, that reaches from the more stable body part of the plate to the end of the branci'i 15 in close proximity to the notch 18. A branch 19 on the flange 13 underlies the passage 20 that leads from the notch 21, and this is strengthened by a similar yoke 22. The middle flange 14; is provided with two notches 23 and 21.

Between the flanges the bearing-surface of the plate is in the one race 26 provided at the front end F with a bearing-face that engages with the bearing-face 5 when the truck swings to turn the front end of the plate toward the rear of the truck. The rear end of the race 26 is cut away so that when the plate swings in the opposite direction to bring the rear of the plate toward the front of the truck the plate swings free from the bearing-face of the segment after the plate passes a point such that its middle line is in front of the line of the axis of the axle. The race 27 is provided with a bearing-face at the rear end, that does not bear at the front end. The bearing-face in the two races overlap each other slightly, their relative position being shown in Figs. 3 by the lines a and b, so that when the car-body is straight with the truck both faces bear equally on both segments. As the plate swings on the segments from the central position the lug on that face of the segment which is adjacent to the middie flange '14: swings into engagement with a notch in this flange, the lug 11 swinging into engagement with the notch 24, and the lug 9 swings into engagement with the lug 23. The interengagement of the lug and the branch serve to aid in interlocking the parts. they are supported without bearing during A further interlocking or a previous interlocking has been accomplished by a projection on the segment at the end of its tread surface. The projection 32 on the segment 2 engages with a shoulder between the two parts 26 and 26 of the race 26, and on the return movement the projection 33 engages between the two parts 27 and 27 in the race 27. Also when the plate swings and the segment looks that lug which is on the outside or on that side of the segment which is toward the outside of the car on the segment 2 engages in the notch 18 and slides along the passage 16, holding the segment which is not now supporting any part of the load in position for its proper engagement on the return movement or reverse swing of the car. On the reverse swing of the car at the proper period this lug swings out of engagement in the passage and the notch, and the segment comes into bearing and on the opposite segment the lug 8 swings through the notch 21 into the passage 20 and holds the segment 3 in position for its proper engagement on the return movement; but the se ment 3 is not now in bearing engagement.

I do not wish to confine myself to structure in which both the segments 2 and 3 are pivoted on the same axle 40, although such a construction is shown in this drawing, but such a construction is not necessary for the proper action of the parts.

IVhat I claim is 1. In a side bearing for cars, in combination with a bearing-plate provided with races, segments pivoted to the truck and adapted to travel in said races, means whereby each segment bears during one part of the swing of the plate thereover, and means whereby another portion of the swing of the plate thereover, substantially as described.

2. In a side bearing for railroad-cars, in combination with a bearing-plate provided with curved races, a pair of segments supported by the truck, there being bearing engagement-surfaces between the segments and the bearing-plate, the said bearing-surfaces overlapping at the central point, whereby when the car and the truck-axle are at right angles to the car-axis, both segments are in bearing, and whereby the plate is thrown out of bearing connection with one segment and retained in bearing connection with the other segment, as the car swings, substantially as described.

3. In a side bearing for cars, in combination with a pair of swinging bearing-segments, a plate provided with curved races in which the segments engage, and interlocking means between the plate and the segments, whereby either segment when thrown out of bearing engagement is held in position to resume bearing engagement, substantially as described.

4. A bearing-plate for side bearings for cars, provided with curved races, each of which has a bearing portion, a supporting segment adapted to engage thereagainst, and a portion adapted to swing over said segment without bearing thereon, substantially as described.

In testimony whereof I sign this specification in the presence of two witnesses.

WILLIAM W'. WOOLL.

Witnesses:

E. S. BLACK, A. W. Row. 

